Traffic Assessment - Renfrewshire Council

Step 2 – Mode Share and Trips by Mode
3.13 The anticipated mode share and associated trips by mode have been calculated using multi-modal
survey data from the TRICS 2012(b) database and are indicated by Table 3.3 below.
Table 3.3 Weekday PM (1700-1800) Mode Share
Multi-modal Trip Rates Multi-modal Total Trips % Split
6,000m 2 Foodstore In Out Total In Out Total
Walking 0.88 0.86 1.74 53 52 104 11%
Cycling 0.04 0.05 0.09 2 3 5 1%
Public Transport 0.13 0.15 0.28 8 9 17 2%
Car Passenger 1.98 1.78 3.76 119 107 226 23%
Vehicles 5.18 5.42 10.6 311 325 636 64%
Total People 8.21 8.25 16.46 493 495 988 100%
3.14 With a mode share of 11%, Table 3.3 indicates that the proposed foodstore will generate 104 twoway
trips on foot during the weekday PM peak period. The TRICS data also indicates that of the
988 total two-way people trips 862 people trips i.e. 87%, will be by car.
Step 3 – Ration of Dargavel Village & Bishopton Village Trips
3.15 It is expected that the majority of the trips that are attracted to the foodstore will be from within the
Bishopton area (a mixture of Dargavel and the existing village) due the isolated nature of Bishopton
and the nature of the shops which will result in few trips from outwith Bishopton. This is consistent
with the findings of the Retail Impact Assessment.
3.16 Most trips which are made to the local shopping facilities (i.e. non food retail elements) within the
new development as a separate trip are likely to be outwith the peak periods. Some trips are likely
to be made to the shops during peak periods but only as pass by trips for other destinations.
3.17 The 2008 Transport Assessment assumed that all of the trips generated by a 2,500m 2 foodstore,
would have originated from within the proposed Dargavel development. While an element of the
trip generation for the proposed 6,000m 2 foodstore will still have originated from within the
Dargavel, the increase in GFA has been proposed in response to Bishopton shopping trends that
were identified by a household survey.
3.18 Therefore, while the Dargavel trips will not use the wider existing road network, it is important to
identify the additional trips that will. When considering the completed Dargavel Village in relation to
Bishopton Village, there will be a 57% / 43% ratio in terms of the total number of houses.
3.19 By adopting this ratio in the number of households, we are able to estimate of the number people
trips that will be generated by Dargavel and Bishopton. The resultant split for each mode of
transport is indicated by Table 3.4 below.
Job No Report No Issue no Report Name Page
SCT3526 1 1 Dargavel Village
Proposed Village Core Development
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